Chapman — New Birds Peru, Bolivia, Brazil, Colombia. 255 



The appended measurements show the constancy of the differences in 

 length and depth of furcation of the tail in the two forms, characters on 

 which, chiefly, 1 base my belief of their specific distinctness. 



Measurements. 



Place. 



( Mlantaytainbo, Peru 



Huaracondo Cation, Peru 



Vinto, Prov. Coch., Bol 



U It It 



Parotani " " !~1~Z~" 



a it it 



Ansa co Sud, Prov. San Juan, Arg 



it a a it 



Mendoza, Argentina 



Torontoy, Peru 



a it 



Ollantaytambo, Peru 



Angaco Sud, Prov. San Juan, Arg. 



Depth 

 of fork. 



13 

 14 

 22.5 



19.5 



19 



20 



23 



21.5 



13 



14 



12.5 



22 



Grallaria watkinsi, new species. 



Specific characters. — Resembling Grallaria ruficapilla albiloris Tacz., 

 but crown paler, more sharply defined from back, and with buff shaft- 

 streaks, back more olivaceous and usually with fine shaft-streaks; ear- 

 coverts dusky, tarsi and toes (in dried skins) pale brown, not dark blackish 

 brown; wing and tail averaging shorter, tarsus and bill longer. 



Type.— No. 163,084, Am. Mus. Nat. Hist., <? ad., Milagros, 2200 ft., 

 Prov. Piura (near Prov. Tumbes), Peru, July 7, 1919; II. Watkins. 



Description of type. — Crown and nape bright ochraceous-tawny, clearly 

 defined from the Saccardo's olive of the back and rump ; forehead tipped with 

 black, the feathers, except in the center, basally white; whole anteorbital 

 region white, sharply tipped with black; ring around eye white, more or less 

 tipped with black; auriculars dusky, basally white and with traces of buffy on 

 the shafts; wings and tail of much the same color as the back; feathers of the 

 crown and back with buff shafts; the rump with white shaft-streaks; lower 

 wing-coverts and inner webs of wing-quills (except outer primary) deep 

 ochraceous-buff ; under parts white, faintly tinted with buff, throat immacu- 

 late; malar streaks blackish and sides of the throat streaked with blackish; 

 breast, sides and flanks widely margined with the color of the back, bor- 

 dered internally, especially on the sides and flanks, with a narrow black line 

 and, particularly on the breast, with rusty ochraceous; center of the belly 

 and lower tail-coverts practically unmarked; tibiae brownish olive extern- 

 ally, whitish internally; tarsi and toes pale brownish; maxilla black; mandi- 

 ble horn color. 



Description of female— -The female resembles the male in size and color. 



Specimens examined. — Grallaria watkinsi. Peru: Type locality, 5 cT, 

 1 $ ; Alamor, 1 c?. 



iMicropus peruvianus. 

 2 Micropus andecolus. 



